Stone-sawing machine.



No. 884,949. PATENTED APR. 14, 1908.

- .J. M. OWENS.

STONE SAWING MACHINE. APPLICATION FILED MAE. 7, 1907.

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00 0 9 1 4 1 R P .A D E T N E M P Ht I1 HQ SAM MM E O E F WN, m L Em u MA ATTORNEYS UNITED STATES PATENT oFFroE.

JOHN MANUEL OWENS, OF OOLITIC, INDIANA, ASSIGNOR TO JOHN M. OWENS, OF OOLITIC,

INDIANA, AND JOHN'A. ROWE, OF BEDFORD, INDIANA, JOINTLY.

STONE-SAWING MACHINE.

Specification of Letters Patent.

Patented April 14, 19'0s.'

To all whom it may concern:

Be it known that I, JOHN MANUEL OWENS, a citizen of the United States, and a resident of Oolitic, in the county of Lawrence and State of Indiana, have invented a. new and Improved Stone-Sawing Machine, of which the following is a full, clear, and exact description. I

The invention relates to stone working, and its object is to provide a new and improved stonesawing machine which is simple and durable in construction, very effective in operation, and provided with wire saws for cutting a stone guickly and accurately into a series of slabs 0 the desired thickness.

The invention consists of novel features and arts and combinations of the same, whic will be more fully described hereinafter and then pointed out in the claims.

A practlcal embodiment of the invention is represented in the accompanying drawings forming a part of this speclfication, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of the improvement; Fig. 2 is a plan view of the same, the overhead drive being omitted; Fig. 3 is an enlarged end view of part of the carriage and the feedin mechanism for the same; Fig. 4 is a side e evation of the same; Fig. 5 1s a sectional plan view of the same, on the line 5-5 of Flg. 3; Fig. 6 is an enlarged sectional plan view of a part of the carriage and the means for tensioning the saw, Fig. 7 is a sectional side elevation of the same, on the line 77 of Fig. 6, and Fig. 8 is an enlar ed side elevation of one of the grooved pul eys for the wire saw.

On a car A or othersuitable support rests the stone B to be sawed into slabs by the use of wire saws C, each in the formofan endless wire passing around a set of grooved pulleys D, D, D secured on transversely extending shafts E, E, E held on a carriage F, referably in the form of two triangularly-s aped side frames, mounted to slide up and down on guide-ways G arranged on posts H, H,-

H H erected on the ground or floor. The endless wire saws C are arranged in vertical parallel planes, spaced distances a art corresponding to the thickness of the s abs to be cut from the stone B, and the said endless wire saws C are in the. form of triangles, the base runs of which form the cutting portion and engage and cut into the stone on the downward feeding of the carriage F.

In order to give the desired tension to the endless wire saws C the shafts E, E are j our naled in bearings I, I fixed to the carriage F, while the shaft E is journaled in bearings I (see Fi s. 2, 6 and 7) mounted to slide longitudinal y on guideways F formed on the carria e F. In the bearings I screw longitudinalIy extending screw rods 13 mounted to turn in guideways F and adapted to receive at their outer ends a crank arm I (see Fig. 1), adapted to be turned by the operator, for turning the screw rods'I to move the bearings I towards or from the posts H, H with a view to tighten or loosen the wire saws O, to give the desired tension to the same. I

In order to impart a traveling motion to the several endless saws C, the following arrangement is made: On the shafts E and E are secured the belt pulleys J, J, and a belt pulley J is journaled on the post H, and around the said pulleys J, J, J 2 passes a belt J also assing over a pulley J secured on a shaft journaled in suitable bearin s arranged on an overhead framework Ii, as plainly indicated in Fi 1. The shaft J riven by a suitablebe t L from the main shaft L, is connected with other machinery for imparting a continuous rotary motion to the shaft L, so thatthe shaft J is rotated and the belt J is caused to rotate, and also the pulleys J, J, J whereby the shafts E and E are driven. Now as the grooved ulleys D, D are secured on the shafts E, IE, it is evident that a traveling motion is given to I the several wire saws C.

In order to feed the carriage F slowly downward for the lower runs of the wire saws C to out into the stone B, the following arrangement is made: On the posts H, H, H and screw rods N, N, N", N screwing in the carriage F, and providedat their upper ends 3 are journaled vertically disposed screw rods N, N secured another bevel gear wheel O in mesh with a bevel gear wheel O secured on a longitudinally extending shaft O journaled in suitable bearings arranged on the upper ends of the posts H and H. On the sh aft O is secured a bevel gear wheel O in mesh with a bevel gear wheel O secured on a transversely extending shaft O ournaled in suitable bearings arranged on the upper ends of the osts H and H On the shaft O are secure the bevel gear wheels O and O in mesh with the bevel gear wheels O and O respectively, to rotate the screw rods N and N simultaneously and in unison with the screw rods N, N owing to the gearing above described and shown in Fig. 2.

On the shaft O is secured a gear wheel P in mesh with a pinion P secured on a short shaft P journaled in a lever P fulcrumed at P on the post H and provided with a handle P under the control of the operator, for imparting a swinging motion to the lever P, so as to move the pinion P in or out of mesh with the gear wheel P. WVhen the carriage F is to be fed downward the pinion P is in mesh with the gear wheel P, but when it is desired to impart a quick return movement of the carriage F or a quick downward movement of the same, the lever P is swung downward to move the pinion P out of mesh with the gear wheel P and to then engage the gear wheel P with a quick drive Q likewise under the control of the operator and hereinafter more fully described. On the shaft P carrying the pinion P is secured a ratchet wheel P engaged by a pawl P fulerumed on an arm P mounted to swing loosely on the shaft P as a fulcrum, the said arm P being pivotally connected with a pitman P con nected with a crank disk P secured on a shaft P journaled on the overhead framework K and driven by a pulley and belt device L from the main shaft L.

Now when the machine is in operation and the pinion P is in mesh with the gear wheel P, then the crank disk P and the pitman P impart a forward and backward swinging motion to the arm P", which by the pawl P intermittently turn the ratchet wheel P, and consequently the shaft P and the pinion P, to intermittently turn the gear wheel P and the shaft O which by the gearing above described causes a simultaneous turning of the several screw rods N, N, N N to slowly feed the carriage F in a downward direction.

The quick drive Q previously mentioned consists of pinions Q, Q, of which the pinion Q is in mesh with a gear wheel Q secured on a shaft Q adapted to be driven from the main shaft L by a pulley and belt drive L 1 and the said gear wheel Q is in mesh with an intermittent gear wheel Q in mesh with the pinion Q so asto rotate the latter in an opposite direction to that given to the pinion On the shaft O is also Q. The pinions Q, Q and. the gear wheel Q are mounted on a lever Q held to rock on the shaft Q and provided with a handle Q under the control of the operator, to enable the latter to impart a swinging motion to the lever Q, so as to throw either of the pinions Q or Q in mesh with the gear wheel P. N ow when the pinion Q is in mesh with the gear wheel P then a quick downward feeding is given to the carriage F, and when the pinion Q is in mesh with the gear wheel P then a quick return or upward feeding movement is given to the carriage. It is understood that when the quick drive Q is used, the slow intermittent feed is out of action and vice versa.

The operation is as follows: When the several parts are in the position as illustrated in Fig. l, and the main shaft L is rotated, then the carriage F is gradually fed downward and a continuous traveling motion is given to the several wire saws C, so that the lower runs of the latter finally come into contact with the top of the stonc'B, to cut into the same in a downward direction as the feeding of the carriage F proceeds. Now by the arrangement described the fast moving wire saws O readily cut with their lower runs into the stone B, so as to divide the same into slabs of desired thickness, it being understood that the several wire saws O are spaced corresponding distances apart. When the stone B has been cut into the several slabs, the operator pulls the handle P downward so as to disengage the pinion P from the gear wheel P, and then the operator pulls the handle Q downward, so as to move the pinion. Q in mesh with the gear wheel P, to cause a return or upward feeding of the carriage F to move the base runs of the wire saws O upward out of engagement with the cuts previously made in the stone B.

From the foregoing it will be seen that by the use of traveling endless wire saws arranged in the manner described stone is quickly sawed into the desired number of slabs of the required thickness.

It is also understood that any desired number of wire saws C may be used, that is, one, two or more, according to the nature of the Work in hand.

The stone sawing machine shown and described. is very simple and durable in construction and very effective in operation.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A sawing machine, comprising a supporting frame, a triangular carriage mounted to slide vertically in the frame, three horizontal shafts mounted in the carriage, one at the apex of the carriage and the other two at the base, one of the shafts at the base being adjustable, pulleys on the shafts, an endless wire passing over the pulleys, belt pulleys on two of the shafts, an idler belt pulley on the frame, an overhead driven pulley, a belt passing around said pulleys, mechanism for ceding the carriage slow y downward, and mechanism for imparting a quick movement to the carriage in either direction.

2. A sawing machine provided with grooved. ulleys arran ed one relative to the other to orm a triang e, an endless cutting wire assing over the said pulleys, the portion 0 the wire between the adjacent base pulleys being the cutting 1portion and for engagement with the materia to be cut, a carriage mounted to travel up and down and on which the shafts of the said grooved pulleys are journaled, belt ulleys secured on two of the said shafts, an id ler belt pulley journaled adjacent to the third grooved pulley shaft, an overhead driven pulle and a belt passing over the said belt pullbys.

3. A sawing machine provided with grooved pulleys arranged one relative to the other to form a triangle, an endless cutting wire assing over the saidpulleys, the portion 0 the wire between the adjacent base pulleys being the cutting ortion and for engagement with the materia to be cut, a carriage mounted to travel up and down and on which the shafts of the said grooved pulleys are journaled, belt ulleys secured on two of the said shafts, an in er belt pulley j ournaled adjacent to the third grooved pulley shaft, an overhead driven ulley, a belt passin over the said belt pu eys, and means for ceding the said carriage in a downward direction.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' JOHN MANUEL OWENS. Witnesses:

JENNIE DIERKING, MAY KERN. 

